Slaking is my favorite Pokemon. Slaking has become more of a revenge killer for me. It revenge kills very well. As for its moveset: Yawn is there because I didn't really have anything else to put on it. I also wanted to see if Yawn was still buggy. Strength is there because it was an HM. Who better, on my team, to have Strength? I'll consider going back when I can and breeding TMs. If I do, I'll just breed Return onto Slaking and keep it as my revenge killer. Using Curse on Slaking doesn't appeal to me.
Headbutt is there on Darmanitan simply because it learned it while leveling up. Although it does get a boost from Sheer Force, I rarely use it. Post Ep-12 Darmanitan doesn't have much to learn. Double fire stab is kinda nice. Why take a chunk of recoil when you know your Sheer Force boosted Fire Punch will do the trick? If I decide to go back to Ep12 and breed TMs I'll lose Fire Punch for something else. Correct me if I'm wrong, but wouldn't Sheer Force negate the ability of Flame Charge?
For your second sentence, are you referring to Dragon Claw on Archeops? If so, you do make a good point. I just really like U-turn. Stocking up on Flying Gems is a great idea.
I just reached Agate so I'll probably teach Gyarados Bounce. I've never liked the move, but it's worth a try. I'll definitely be giving Gyarados Waterfall once I get it. I'm not too far from it. I considered health investment before I EV trained. I got lazy and decided to keep it simple. I'll probably finish up episode 14 and do some more breeding afterwards. I'll probably take your advice on the health investment.
Again, Headbutt is there simply because it learned it while leveling up. Ice Punch is a great idea. I'll do that after I finish up episode 14.
You are correct. I'll use the move relearner in Agate Circus to swap the moves.
That would require Ep-12 TM Breeding. Also I'm in Agate Circus atm. I'll probably do some Ep-12 breeding after I finish episode 14.
The idea of a High Jump Kick, Zen Headbutt, and my choice of two elemental punches with Life Orb really appealed to me. I have tried this in a previous save file. It wasn't as fun as I expected. Medicham's speed was the biggest factor.
It's just one EV. I just couldn't be bothered to care.
I'll consider Galvantula after I finish episode 14. That is, if I don't fall in love with Durant. For now, I'm content with my physical attackers